ARM: Make Integrator/Versatile/Reaview VCO code similar

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 files changed, 26 insertions, 32 deletions

diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
index 3e2110216851..2f9de622d1fa 100644
--- a/arch/arm/mach-integrator/impd1.c
+++ b/arch/arm/mach-integrator/impd1.c
@@ -55,20 +55,10 @@ static const struct icst_params impd1_vco_params = {
 static void impd1_setvco(struct clk *clk, struct icst_vco vco)
 {
         struct impd1_module *impd1 = clk->data;
-        int vconr = clk - impd1->vcos;
-        u32 val;
-
-        val = vco.v | (vco.r << 9) | (vco.s << 16);
+        u32 val = vco.v | (vco.r << 9) | (vco.s << 16);
 
         writel(0xa05f, impd1->base + IMPD1_LOCK);
-        switch (vconr) {
-        case 0:
-                writel(val, impd1->base + IMPD1_OSC1);
-                break;
-        case 1:
-                writel(val, impd1->base + IMPD1_OSC2);
-                break;
-        }
+        writel(val, clk->vcoreg);
         writel(0, impd1->base + IMPD1_LOCK);
 
 #ifdef DEBUG
@@ -381,6 +371,8 @@ static int impd1_probe(struct lm_device *dev)
                 impd1->vcos[i].data = impd1,
                 impd1->vcos[i].setvco = impd1_setvco;
         }
+        impd1->vcos[0].vcoreg = impd1->base + IMPD1_OSC1;
+        impd1->vcos[1].vcoreg = impd1->base + IMPD1_OSC2;
 
         impd1->clks[0] = clkdev_alloc(&impd1->vcos[0], NULL, "lm%x:01000",
                                         dev->id);
diff --git a/arch/arm/mach-integrator/include/mach/clkdev.h b/arch/arm/mach-integrator/include/mach/clkdev.h
index 89ea93803998..ed67e8edc0d1 100644
--- a/arch/arm/mach-integrator/include/mach/clkdev.h
+++ b/arch/arm/mach-integrator/include/mach/clkdev.h
@@ -8,8 +8,9 @@ struct clk {
         unsigned long           rate;
         struct module           *owner;
         const struct icst_params *params;
-        void                    *data;
+        void __iomem            *vcoreg;
         void                    (*setvco)(struct clk *, struct icst_vco vco);
+        void                    *data;
 };
 
 static inline int __clk_get(struct clk *clk)
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 5a5a8c1c087f..590858004ef6 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -266,8 +266,8 @@ static void __init intcp_init_irq(void)
 /*
  * Clock handling
  */
-#define CM_LOCK IO_ADDRESS(INTEGRATOR_HDR_LOCK)
-#define CM_AUXOSC IO_ADDRESS(INTEGRATOR_HDR_BASE + 0x1c)
+#define CM_LOCK         (__io_address(INTEGRATOR_HDR_BASE)+INTEGRATOR_HDR_LOCK_OFFSET)
+#define CM_AUXOSC       (__io_address(INTEGRATOR_HDR_BASE)+0x1c)
 
 static const struct icst_params cp_auxvco_params = {
         .ref            = 24000000,
@@ -285,16 +285,17 @@ static void cp_auxvco_set(struct clk *clk, struct icst_vco vco)
 {
         u32 val;
 
-        val = readl(CM_AUXOSC) & ~0x7ffff;
+        val = readl(clk->vcoreg) & ~0x7ffff;
         val |= vco.v | (vco.r << 9) | (vco.s << 16);
 
         writel(0xa05f, CM_LOCK);
-        writel(val, CM_AUXOSC);
+        writel(val, clk->vcoreg);
         writel(0, CM_LOCK);
 }
 
 static struct clk cp_auxclk = {
         .params = &cp_auxvco_params,
+        .vcoreg = CM_AUXOSC,
         .setvco = cp_auxvco_set,
 };
 
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index f97f001e874b..043b93bab7df 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -271,19 +271,13 @@ static const struct icst_params realview_oscvco_params = {
 static void realview_oscvco_set(struct clk *clk, struct icst_vco vco)
 {
         void __iomem *sys_lock = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_LOCK_OFFSET;
-        void __iomem *sys_osc;
         u32 val;
 
-        if (machine_is_realview_pb1176())
-                sys_osc = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC0_OFFSET;
-        else
-                sys_osc = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC4_OFFSET;
-
-        val = readl(sys_osc) & ~0x7ffff;
+        val = readl(clk->vcoreg) & ~0x7ffff;
         val |= vco.v | (vco.r << 9) | (vco.s << 16);
 
         writel(0xa05f, sys_lock);
-        writel(val, sys_osc);
+        writel(val, clk->vcoreg);
         writel(0, sys_lock);
 }
 
@@ -332,7 +326,13 @@ static struct clk_lookup lookups[] = {
 
 static int __init clk_init(void)
 {
+        if (machine_is_realview_pb1176())
+                oscvco_clk.vcoreg = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC0_OFFSET;
+        else
+                oscvco_clk.vcoreg = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC4_OFFSET;
+
         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
+
         return 0;
 }
 arch_initcall(clk_init);
diff --git a/arch/arm/mach-realview/include/mach/clkdev.h b/arch/arm/mach-realview/include/mach/clkdev.h
index fefe4671255c..baea03c9ad45 100644
--- a/arch/arm/mach-realview/include/mach/clkdev.h
+++ b/arch/arm/mach-realview/include/mach/clkdev.h
@@ -6,7 +6,7 @@
 struct clk {
         unsigned long           rate;
         const struct icst_params *params;
-        u32                     oscoff;
+        void __iomem            *vcoreg;
         void                    (*setvco)(struct clk *, struct icst_vco vco);
 };
 
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 490fc7597bb6..957bbde83d34 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -370,21 +370,19 @@ static const struct icst_params versatile_oscvco_params = {
 
 static void versatile_oscvco_set(struct clk *clk, struct icst_vco vco)
 {
-        void __iomem *sys = __io_address(VERSATILE_SYS_BASE);
-        void __iomem *sys_lock = sys + VERSATILE_SYS_LOCK_OFFSET;
+        void __iomem *sys_lock = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET;
         u32 val;
 
-        val = readl(sys + clk->oscoff) & ~0x7ffff;
+        val = readl(clk->vcoreg) & ~0x7ffff;
         val |= vco.v | (vco.r << 9) | (vco.s << 16);
 
         writel(0xa05f, sys_lock);
-        writel(val, sys + clk->oscoff);
+        writel(val, clk->vcoreg);
         writel(0, sys_lock);
 }
 
 static struct clk osc4_clk = {
         .params = &versatile_oscvco_params,
-        .oscoff = VERSATILE_SYS_OSCCLCD_OFFSET,
         .setvco = versatile_oscvco_set,
 };
 
@@ -831,6 +829,8 @@ void __init versatile_init(void)
 {
         int i;
 
+        osc4_clk.vcoreg = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSCCLCD_OFFSET;
+
         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         platform_device_register(&versatile_flash_device);
diff --git a/arch/arm/mach-versatile/include/mach/clkdev.h b/arch/arm/mach-versatile/include/mach/clkdev.h
index fefe4671255c..baea03c9ad45 100644
--- a/arch/arm/mach-versatile/include/mach/clkdev.h
+++ b/arch/arm/mach-versatile/include/mach/clkdev.h
@@ -6,7 +6,7 @@
 struct clk {
         unsigned long           rate;
         const struct icst_params *params;
-        u32                     oscoff;
+        void __iomem            *vcoreg;
         void                    (*setvco)(struct clk *, struct icst_vco vco);
 };